Nut-lock.



J. E. DRESSLER.

NUT LOCK.

APPLICATION FILED JAN. 7, 190a.

Patented N0v."24, 190s.

' vwcmfoz QEK M' EJ736926? %i M use:

tic-(Mag I JEREMIAH DRESSLER, OF ROANOKE, VIRGENIA,

HUT-LGUK.

no. scenes.

Speeificehion of Letters Feteni.

retested Nov. 24, loo

Application filecllenuexy '2, 153x13. Serial 1%. 69,732.

To all whom it may concern:

Be it known that I, JEREMIAH E. Dunes- Lnu, a citizen of the UnitedStates, residing at Roanoke in the county of Roanoke and State ofVirginia, have invented certain new and useful linprovements inNut-Locks, of

I which the following is a specification, refer- *ence beinghad thereinto the accompanying drawing.

This invention relates to improvements in nut locks, and particularly to.a device for facilitating the holding of, preferably, two nuts togetherupon a bolt against independent, rotary movement with respect to saidbolt, or holding a singlenut against independent, rotary movement upon abolt, or holding the nut and bolt upon a. support 'aguinst indcoendentrotary movement.

Another 0 ect of the mvenhou is the unand a nut, whereby the two can belocked With these an other objects in view, the invention consi ts ofcertain novel constructions, combinations, and arrangements of parts, aswill he hereinafter fully described and claimed.

in the drawings: Figure 1 is a. view in side elevation of a deviceconstructed in ac cordance'with the present invention. Fig. 2 is a viewsimilar to Fig. 1, except that, in this figure, I have shown thesupport-in full 3 'is a planviewbf'anut Fig. 4 is a perspective View ofa washer Constructed in accordance with the resent invention. Fig. 5 isa fragmentary View, in side elevation, of a device constructed inaccordance with the present invention. 1

Referring to the druwings'by numerals, l designates a support, throughwhich extends a bolt 2 provided at one end with a head 3. 'lhe bolt 2 isthreaded, at 4:, near one end, and formed in the threaded end el, is alon gitudinallv-extending groove i In constructing the nutsli, l,preferably, Form one or both sides oijhe same structure, which consistsin cutting or filing the face of the nut, at its corners, in a straightline '4', for producin gradually inclined or beveled or stop, the outerface of which is in thesame plane with the face of the nut.

In Fig.2, the nut 6 is shown as provided.

only with the beveled portions 8 and stops or projections 7, upon oneside, preferably,

though the nut -G can be easily reversed upon. the bolt and caused toexpose its be" eled or peoullolly-constructed ratchet-flint: at thebottom, in position for engaging a washer 9, as illust'ated in Fig. 1.It is to be noted that the stops or projections 7 are formed in pairs,each pair formed on, an imaginary line connecting the corners of the twoopposite right-angles formed bthe sides of the nut, thereby placing thebeveled porti on S in each l'rmlsverse pair upon oppo site sides of an.iuniginary line drawn on a v line with the shoulders or projections 7;provomcnt of the construction of a washer this peculiar structure is ofimportance, owingr'to the peculiar structure of the washer l). Thewasher 9 cou'iprises a body portion provided with a central aperture 10,projecting into which is :1 lug 11, which is adapted erahly, in the samevertical plane with the lines and the washer between two nuts. Fig. 1

sides of the nut. or nuts. it is important that these slots 12 heformed. at the corners and intend inwardly at an angle from the sioles'not at. rigl'ltaingles, l'iccause this gives a greater lcngl'li to thespring'lips l3 and '14. The line 13 extend to one side of the body, andthe lips i to the opposite side of sold hotly, Each slot provided "withslanting csl5, Fig. 5.,01' in other words, is formed at an angle (not atright-angles) to the unch and lower faces oflhe washer. thereloyprodlxciug o sharp, cutting edge 16 upon each Prlip 13 and 14 the entirelength thereof.

When the washer is positioned upon the l)olt,-land the nut is threadedinto engagelnfil'll'i therewith, one of the beveled portions 8, or ii'the nut and washer are formed perfectly, each of the bcvelml portions 8,will edges 8: the inc 7 constituting a. pla'zjcctia'm he engagedilu'ouglmut ils nullre lcz'agt-h by in this instance, upon the upperface, all-'- a spring-tongue and the bear against the vertical wall ofthe 'is to bite or grip deeper into the metal for forming a morepositive lock; it is to be noted that the washer and its tongues litsnug against the nut or nuts and its shoulders. When the washer ispositioned upona wooden support, or, in fact, upon a metal support, asshown in Figs. 1 and 5, after the nut has been threaded against saidwasher and rotation of the bolt is caused, in a backward direction, thelowest lip or lips of the washer will enga e, and, consequently, thebiting edgelo Wlll cut into thesupport; a piece, or pieces, 17 is turnedup into the slot and forms a filling means therein, thereby causing aportion of the support (Fig. 5) to fill the slot or slots and form aneliicient lock to prevent, preferably, rotation oi"v the bolt upon thesupport, in one direction.

It is to be noted that I can mount two nuts (Fig. 2) upon bolt andsecure the same against independent rotary movement with respect to saidbolt, even though the support carrying said bolt is mounted upon jointedparts of a machine or device, which machine or device constitutes the suport carrying the bolt and nuts; the nuts eing held securely together,owing to their peculiar structure and the structure of the washer,although said supportmay have a continuous or intermittent movement,which would normally tend to remove or unscrew an ordinarily constructedbolt or nut.

The forming of the slots upon the washer at the corners causes the sameto extend at an angle to the edges, not at rightangles, producescomparatively long spring lips, or tongues, which would. not be thecase, it they were formed intermediate the corners of the washer,whereby a greater springy or grip ping action obtained than otherwisewould be the case, as mentioned. lfurthcrmorc, l have provided walls,(producing very cheap and ci'llcicnl structure), forming biting orsharpened. blades or edges 16 upon the washer for gripping the'peculiarlyco1istructed shoulder or ratchet portions 7 of a nut, andalso the support 1.

My washer is formed, preferably, of comiaratirely stilt metal, althoughthe metal is, preferably, of sutlicicnt resiliency, or has a springyaction for permittingthe nut or nuts to slide over the spring lips ortongues until the same is tightly positioned,

Under normal conditions, it is to be noted that my locking washer isheld. between the sides of the nut or nuts and. does not project beyondthe same, thereby obviating the posto the operator, or tearing hisclothes, or garments, by the lips or tongues engaging the same, and,beside, re-

moves the tendency of the lips or tongues being destroyed by foreignobjects coming 1n contact therewith, which greatly increases the life ofthe locking device and the slitciency of the same, owing to the lips ortongues not becoming loose or being destroyed.

What I claim is:

1. In a nut lock,the combination with a bolt provided with alongitudinally-extending groove, of: a pair of nuts threaded upon thegroove-portion of said bolt, each nut provided upon the face contiguousto the other nut, with a shoulder extending from the corner inwardtowards the center of the nut, said nut provided with a portiongradually beveled from its fiat face inward towards the corner of thenut, producing said shoulder, said beveled portion being deepest at thecorner of the nut and terl'ninating in the face of the nut at the innerend of the shoulder, a square washer positioned upon said bolt andinterposed between the contiguous faces of said nuts, said washerprovided with an integral lug extending into the groove of said bolt,said washer provided at its corners with inclined slots extendinginwardly towards the center of the washer, each slot producing lips at aeach corner extending upon opposite sides of the washer, the shouldersor" the nuts at each corner having the beveled portions po-. sitioned atopposite sides of an imaginary vertical line passing through theshoulders at opposite corners, whereby the lips,at each corner engagethe shoulders of the nuts at each corner, and positively lock the nutsagainst independent rotary movement.

2. In a nut lock, the combination with a bolt provided with alongitu(finally-extending groove, of a washer upon said bolt andprovided with an integral lug extending into said groove, said washerprovided at each corner with an inclined slot extending inard towardsthe center of the washer, each slot. producing lips extending uponopposite sides of the washer, the inclined slot form ing inclined,parallel walls the entire length of the slot, each incurred wallproducing a cutting-edge the entire length and upon the outer,horizontal edge of the lip, a nut provided with shoulders at eachcorner, each shoulder extending from the corner inward towards thecenter of the nut, said nut provided with a portion gradually beveledfrom its flat lace inward towards the corner of the nut, producing saidshoulder, said beveled portion being deepest at the corner of the nutand terminating in the face of the nut at the inner end of the shoulder,the sh ouldersat opposite corners of the nut posinuned a1" umwsi tesides of an imugihary, ver- L eu] line pu sing through the shoulders atl opposite comers, whereby a lip at each corner of said washer mayengage a shoulder of the 1 nut at each corner and positively lock thenut l :iQnihs independent l'otary'movemenbin one dln'zd ion upon thebolt. i

In testimony whereof hereunto ilfiiX my signature 1n presence of two\ntnesses.

JEREMIAH F DRESSLER.

\ViiDQS-IQSI 115. ST. CLAIR, J. E. GlSH,

